Set 5037zip 99%

This set was a specialized "Service Pack" designed to extend the 9V electric system used in LEGO Trains and Space themes from the late 80s.

: You can stack these bricks just like standard LEGO pieces. They are designed to carry the current vertically through the studs. 3. Maintenance Tips for Vintage 9V Bricks Set 5037zip

: These bricks are only compatible with the LEGO 9V Electric System and will not work with modern "Power Functions" or "Powered Up" systems without custom adapters. 2. How to Use Current-Carrying Bricks This set was a specialized "Service Pack" designed